A kind of preparation method of graphene-aluminum mixed powder

A graphene and mixed powder technology, applied in chemical instruments and methods, carbon compounds, metal processing equipment, etc., can solve problems such as uneven dispersion of graphene, graphene damage, etc., and achieve difficult desorption and separation, and finished products have a high degree of dispersion. , the effect of promoting intermolecular interactions

Active Publication Date: 2022-01-21
HARBIN INST OF TECH
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In order to solve the problems of uneven dispersion of graphene and serious damage to graphene in the method for preparing graphene-aluminum mixed powder, the invention provides a preparation method of graphene-aluminum mixed powder

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  • A kind of preparation method of graphene-aluminum mixed powder
  • A kind of preparation method of graphene-aluminum mixed powder

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specific Embodiment approach 1

[0019] Specific embodiment one: present embodiment graphene-aluminum mixed powder preparation method is finished according to the following steps:

[0020] 1. Weighing: Weigh graphene and aluminum metal powders respectively according to mass fraction;

[0021] 2. Graphene pretreatment: add the graphene weighed in step 1 into an ammonia solution, and stir under ultrasonic conditions to obtain a pretreated graphene solution;

[0022] 3. Aluminum metal powder pretreatment: add the aluminum metal powder weighed in step 1 into the tin chloride solution, and stir under ultrasonic conditions to obtain a pretreated aluminum metal powder solution;

[0023] 4. Mixing:

[0024] Mix the pretreated graphene solution in step 2 and the pretreated aluminum metal powder solution in step 3, and stir under ultrasonic conditions to obtain a graphene-aluminum dispersion;

[0025] 5. Filter and dry the graphene-aluminum dispersion obtained in step 4 to obtain a graphene-aluminum mixed powder, whi...

specific Embodiment approach 2

[0031] Specific embodiment 2: The difference between this embodiment and specific embodiment 1 is: when graphene and aluminum metal powder are weighed respectively by mass fraction in step 1, the mass fraction of graphene is 0.1~5%, and the balance is aluminum metal powder.

specific Embodiment approach 3

[0032] Specific embodiment three: the difference between this embodiment and specific embodiment one or two is: NH in the ammonia solution described in step two 3 ·H 2 The mass fraction of O is 5-30%.

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Abstract

A preparation method of graphene-aluminum mixed powder relates to a preparation method of graphene-aluminum mixed powder. The purpose is to solve the problems of uneven graphene dispersion and serious graphene damage in the method for preparing graphene-aluminum mixed powder. Method: add graphene to ammonia solution and stir under ultrasonic to obtain pretreated graphene solution, add aluminum metal powder to tin chloride solution and stir under ultrasonic to obtain pretreated aluminum metal powder solution, and prepare graphene solution and pretreated The aluminum metal powder solution is mixed to obtain a graphene-aluminum dispersion, which is finally filtered and dried. The sensitization treatment of the present invention can promote the interface adsorption between graphene and aluminum metal powder, and improve the combination of graphene and aluminum metal powder; there is no damage to graphene, and the components of the prepared graphene-aluminum mixed powder can be precisely controlled, and the production is convenient and low cost lower. The invention is suitable for preparing graphene-aluminum mixed powder.

Description

technical field [0001] The invention relates to a preparation method of graphene-aluminum mixed powder. Background technique [0002] Graphene is a new type of nano-reinforcement, ideally graphene is made of sp 2 The two-dimensional layered structure formed by the connection of carbon atoms in the hybrid state has extremely high mechanical properties (tensile strength > 130GPa) and thermoelectric properties (thermal conductivity > 5×10 -3 W / mK). Aluminum metal powder is an important raw material for the preparation of aluminum-based materials. Graphene, as a new two-dimensional nano-reinforcement, is often added to the aluminum matrix to improve the overall performance of the material; the addition method of graphene is to add graphene Mixed with aluminum metal powder to prepare graphene-aluminum mixed powder, and then sintered into shape. At present, the preparation methods of graphene-aluminum mixed powder are mainly mechanical ball milling method, stirring disper...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22F1/00C22C1/10C22C1/05C22C21/00C22C21/02C22C21/06C22C21/08C22C21/10C22C21/12C22C21/14C22C21/16C22C21/18C01B32/194B82Y30/00
CPCB22F1/0003C22C1/10C22C21/08C22C21/02C22C21/12C22C21/06C22C21/14C22C21/16C22C21/10C22C21/18C22C21/00C01B32/194B82Y30/00B22F1/14
Inventor 鞠渤宇梅勇杨文澍张强武高辉姜龙涛陈国钦康鹏超修子扬乔菁周畅芶华松
Owner HARBIN INST OF TECH
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